Gripping device.



B. KAN. I GRIPPING DEVICE."

APPLICATION FILED JUNE 12, 190B.

Patented June 8, 1909.

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UNITE EZEKIEL KAN, OF LOS ANGELES, CALIFORNIA.

GRIPPING DEVICE.

Specification of Letters Patent.

Patented June 8, 1909.

Application filed June 12, 1908. Serial No. 438,238.

useful Gripping Device; and 1 do hereby dcclare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled int-he art to which it appertains to make and use thesame.

This invention relates'to agripping device,

and has for one of its objects to provide a device of that character,the action of which under normal conditions of use, is adapted toprevent the withdrawal therefrom of a scarfpin or the like; but whichmay be operated at will for the purpose of withdrawing the scarfipin.

Another object of the invention is to provide a simple and compact form(if-construclion for the device, which permits ease of operation andwhereby neatncss of appearance is attained and in which the parts arestrong, cheap to manufacture, and readily assembled in making up thedevice.

Still another object of the invention is to provide means by which the.device may be positively locked in position.

Other objects and the advantages of the invention will be apparent fromthe following: description of several forms of construction in which theinvention may be cmbmlicd, and which are illustrated in the accompanyingdrawings, in which,

Figure 1 is a somewhat enlarged view, in "elevation, of the device. Fig.2 is a greatly enlarged longitudinal sectional view of the device, theshell or casing being of a slightly dill'erent form from that shown inFig. i. Fig. 3 is a detail, in section, of a modification of thegripping means.

Referring to the drawings; reference numoral. 1 designates a shell orcasing which may take either of. thc forms shown in l it's. 1 and 2. Theborcol' thcshcll is prchn'ably made witha lower portion 2 thereofenlarged and of uniform cross-scction, and with a convorging portion 3above the PUI'tlQU'Q.

in the upper part of the shell is a central cylindrical opening; 4 whichcommunicates with the upper end of the converging portion 3 of the bore.Fitting, in the opening 4 is a tubular mcmbcr 5, in which the opening 6is provided, which opening is preferably made slightly flaring, at theupper end to permit easy insertion of the pin 7 therein. lhe

lower portion 8 of member 5 is made diverging and formed ,to fit,somewhat loosely, in the space of the converging portion 3 ot the bore.In the diverging portion 8 are provided openings or ways 9, whichpreferably have a direction normal to the exterior surface of portion 8and are extended to com municate with the opening 6 in member 5.

Disposed in the openings or ways 9 are flat disks orballs 10, (Fig. 2),or round-ended pins 11 (Fig. 3); for a purpose hereinafter mentioned.

Below member 5 and. pressing thereagainstis a spring 12 arranged in theen larg'cd portion 2 of the bore and resting against the interior wallsof the shell and upon a piece 13, which latteris secured in the lowerend of the bore and is provided with an annular threaded llangc 14extending innrdly centrally 'ol' the bore and of the spring. l ittcd inthe threaded flange 14 is a milled headed screw] 5 provided with a central opening 16 in registry with the opening a in member and which hasits shank 17 of such' length that the end thereof may be made to abutthe projection 18 on the bottom of member 5. ()n the upper cnd portionof melnbcr 5 is mounted a part it) suitably formed to permit lingerpressure to be ex erted on the member-j l n assemblin the )arts of thedevice. the

balls are lil'sl' placed in the ways i) in the member 5, whereupon themember is positioned in the shell by passing it in from the. lower endof the shell. The spring 12 may then be arranged in the bore, and thepiece 13 pressed into the bore; which piece may be. retained in positionby pecning over the lower end of the shell. The part 19 may be pressedin position on member 5 after the screw 15*has been screwed intothreaded flange i l-so that the end oi the shank 17 provents movement ofthe member.

The invention having been described, its opcrationwill now be explained.desired to use the device to hold a scarf-pin or the. like, the screw 15is manipulated to When it is.

bring the end of its shank 17 away from the bottom of member 5,whereupon the pin may be passed through the respective 0penings 6 and16, in the member 5 and the screw 15, and when suitably adjusted inposition the screw may be screwed up against the member 5 to prevent anymovement of the latter; whereby, as will be understood, the pin islocked in position because of the gripthe shell.

piniaction of the device, caused by the balls in -t e ways 9 jammingbetween the pin and 'In order to withdraw the pin ,from the device, thescrew is manipulated ber pressed member therein,

and

5, whereupon by finger pressure on the part 19 ofthe member, the lowerportion of the latter may be moved to a position where the ballsare freeto move without jamming between the pin and the shell.

It will be noted that the device shortens in length on the insertion ofa pin in the membe! 5; the sho rteningbeing proportionate to thediameter of the pm.

I claim:

'The combination of a shell and a springmember being provided with meansto perv moved away from the bottom of memsaid shell and said "mit theinsertion of a pin thereih, and with means coactin to prevent the u wardmovement of the in when the mem er is normally pressed 1n one directionby the spring and to release the pin when the member is moved in theopposite direction against the force of the spring, and adjustable meansby which the movement of the member in said opposite direction may beprevented.

In testimony whereof, I have signed my name to this specification in thepresence of two subscribing witnesses at Los Angeles county of LosAngeles, State of California,

this 6th day of June A. D. 1908. EZEKIEL KAN.

Witnesses: I

ALEX. H. Lrnnaas, ANNA. B. DESSAU.

